. The Street railway journal . losed heaters. Briefly considering the two types, the points of superiority urgedfor the open heaters are as follows: That the quantity of water thatcan be heated is not limited by the number of square feet of surface ing during all the time of its passage through the heater, its latentheat to the incoming water. All steam condensed mingles, of course,with the cold water supply, adding to this latter an important per-centage of perfectly pure water, thereby raising the standard of pur-ity of the feedwater. After leaving the trays, the water is held in the lower p
. The Street railway journal . losed heaters. Briefly considering the two types, the points of superiority urgedfor the open heaters are as follows: That the quantity of water thatcan be heated is not limited by the number of square feet of surface ing during all the time of its passage through the heater, its latentheat to the incoming water. All steam condensed mingles, of course,with the cold water supply, adding to this latter an important per-centage of perfectly pure water, thereby raising the standard of pur-ity of the feedwater. After leaving the trays, the water is held in the lower part of theheater where, being at rest at a temperature close to that of the boil-ing point, it has an opportunity to deposit those impurities whichare precipitated at that temperature. The water drawn off from thelower part of the heater is first obliged to pass down through a filter-ing bed of coke, thence upward under a vented hood to the pumpsuction opening. As will be seen, the entire design of the heater is such as to fa-. |c:::=|Exhaus1 OuUeT jaRe^ulalltibValve ExhauslInlet
Size: 2057px × 1215px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
